Unrated severityNVD Advisory· Published Nov 24, 2025· Updated Nov 25, 2025
LIBPNG is vulnerable to a buffer overflow in `png_image_read_composite` via incorrect palette premultiplication
CVE-2025-64720
Description
LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From version 1.6.0 to before 1.6.51, an out-of-bounds read vulnerability exists in png_image_read_composite when processing palette images with PNG_FLAG_OPTIMIZE_ALPHA enabled. The palette compositing code in png_init_read_transformations incorrectly applies background compositing during premultiplication, violating the invariant component ≤ alpha × 257 required by the simplified PNG API. This issue has been patched in version 1.6.51.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
129- osv-coords127 versionspkg:rpm/almalinux/java-17-openjdkpkg:rpm/almalinux/java-17-openjdk-demopkg:rpm/almalinux/java-17-openjdk-demo-fastdebugpkg:rpm/almalinux/java-17-openjdk-demo-slowdebugpkg:rpm/almalinux/java-17-openjdk-develpkg:rpm/almalinux/java-17-openjdk-devel-fastdebugpkg:rpm/almalinux/java-17-openjdk-devel-slowdebugpkg:rpm/almalinux/java-17-openjdk-fastdebugpkg:rpm/almalinux/java-17-openjdk-headlesspkg:rpm/almalinux/java-17-openjdk-headless-fastdebugpkg:rpm/almalinux/java-17-openjdk-headless-slowdebugpkg:rpm/almalinux/java-17-openjdk-javadocpkg:rpm/almalinux/java-17-openjdk-javadoc-zippkg:rpm/almalinux/java-17-openjdk-jmodspkg:rpm/almalinux/java-17-openjdk-jmods-fastdebugpkg:rpm/almalinux/java-17-openjdk-jmods-slowdebugpkg:rpm/almalinux/java-17-openjdk-slowdebugpkg:rpm/almalinux/java-17-openjdk-srcpkg:rpm/almalinux/java-17-openjdk-src-fastdebugpkg:rpm/almalinux/java-17-openjdk-src-slowdebugpkg:rpm/almalinux/java-17-openjdk-static-libspkg:rpm/almalinux/java-17-openjdk-static-libs-fastdebugpkg:rpm/almalinux/java-17-openjdk-static-libs-slowdebugpkg:rpm/almalinux/java-1.8.0-openjdkpkg:rpm/almalinux/java-1.8.0-openjdk-accessibilitypkg:rpm/almalinux/java-1.8.0-openjdk-accessibility-fastdebugpkg:rpm/almalinux/java-1.8.0-openjdk-accessibility-slowdebugpkg:rpm/almalinux/java-1.8.0-openjdk-demopkg:rpm/almalinux/java-1.8.0-openjdk-demo-fastdebugpkg:rpm/almalinux/java-1.8.0-openjdk-demo-slowdebugpkg:rpm/almalinux/java-1.8.0-openjdk-develpkg:rpm/almalinux/java-1.8.0-openjdk-devel-fastdebugpkg:rpm/almalinux/java-1.8.0-openjdk-devel-slowdebugpkg:rpm/almalinux/java-1.8.0-openjdk-fastdebugpkg:rpm/almalinux/java-1.8.0-openjdk-headlesspkg:rpm/almalinux/java-1.8.0-openjdk-headless-fastdebugpkg:rpm/almalinux/java-1.8.0-openjdk-headless-slowdebugpkg:rpm/almalinux/java-1.8.0-openjdk-javadocpkg:rpm/almalinux/java-1.8.0-openjdk-javadoc-zippkg:rpm/almalinux/java-1.8.0-openjdk-slowdebugpkg:rpm/almalinux/java-1.8.0-openjdk-srcpkg:rpm/almalinux/java-1.8.0-openjdk-src-fastdebugpkg:rpm/almalinux/java-1.8.0-openjdk-src-slowdebugpkg:rpm/almalinux/java-21-openjdkpkg:rpm/almalinux/java-21-openjdk-demopkg:rpm/almalinux/java-21-openjdk-demo-fastdebugpkg:rpm/almalinux/java-21-openjdk-demo-slowdebugpkg:rpm/almalinux/java-21-openjdk-develpkg:rpm/almalinux/java-21-openjdk-devel-fastdebugpkg:rpm/almalinux/java-21-openjdk-devel-slowdebugpkg:rpm/almalinux/java-21-openjdk-fastdebugpkg:rpm/almalinux/java-21-openjdk-headlesspkg:rpm/almalinux/java-21-openjdk-headless-fastdebugpkg:rpm/almalinux/java-21-openjdk-headless-slowdebugpkg:rpm/almalinux/java-21-openjdk-javadocpkg:rpm/almalinux/java-21-openjdk-javadoc-zippkg:rpm/almalinux/java-21-openjdk-jmodspkg:rpm/almalinux/java-21-openjdk-jmods-fastdebugpkg:rpm/almalinux/java-21-openjdk-jmods-slowdebugpkg:rpm/almalinux/java-21-openjdk-slowdebugpkg:rpm/almalinux/java-21-openjdk-srcpkg:rpm/almalinux/java-21-openjdk-src-fastdebugpkg:rpm/almalinux/java-21-openjdk-src-slowdebugpkg:rpm/almalinux/java-21-openjdk-static-libspkg:rpm/almalinux/java-21-openjdk-static-libs-fastdebugpkg:rpm/almalinux/java-21-openjdk-static-libs-slowdebugpkg:rpm/almalinux/java-25-openjdkpkg:rpm/almalinux/java-25-openjdk-crypto-adapterpkg:rpm/almalinux/java-25-openjdk-crypto-adapter-fastdebugpkg:rpm/almalinux/java-25-openjdk-crypto-adapter-slowdebugpkg:rpm/almalinux/java-25-openjdk-demopkg:rpm/almalinux/java-25-openjdk-demo-fastdebugpkg:rpm/almalinux/java-25-openjdk-demo-slowdebugpkg:rpm/almalinux/java-25-openjdk-develpkg:rpm/almalinux/java-25-openjdk-devel-fastdebugpkg:rpm/almalinux/java-25-openjdk-devel-slowdebugpkg:rpm/almalinux/java-25-openjdk-fastdebugpkg:rpm/almalinux/java-25-openjdk-headlesspkg:rpm/almalinux/java-25-openjdk-headless-fastdebugpkg:rpm/almalinux/java-25-openjdk-headless-slowdebugpkg:rpm/almalinux/java-25-openjdk-javadocpkg:rpm/almalinux/java-25-openjdk-javadoc-zippkg:rpm/almalinux/java-25-openjdk-jmodspkg:rpm/almalinux/java-25-openjdk-jmods-fastdebugpkg:rpm/almalinux/java-25-openjdk-jmods-slowdebugpkg:rpm/almalinux/java-25-openjdk-slowdebugpkg:rpm/almalinux/java-25-openjdk-srcpkg:rpm/almalinux/java-25-openjdk-src-fastdebugpkg:rpm/almalinux/java-25-openjdk-src-slowdebugpkg:rpm/almalinux/java-25-openjdk-static-libspkg:rpm/almalinux/java-25-openjdk-static-libs-fastdebugpkg:rpm/almalinux/java-25-openjdk-static-libs-slowdebugpkg:rpm/almalinux/libpngpkg:rpm/almalinux/libpng-develpkg:rpm/almalinux/mingw32-libpngpkg:rpm/almalinux/mingw32-libpng-staticpkg:rpm/almalinux/mingw64-libpngpkg:rpm/almalinux/mingw64-libpng-staticpkg:rpm/opensuse/libpng16&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/libpng16&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/libpng16&distro=openSUSE%20Tumbleweedpkg:rpm/suse/libpng16&distro=SUSE%20Enterprise%20Storage%207.1pkg:rpm/suse/libpng16&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSSpkg:rpm/suse/libpng16&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOSpkg:rpm/suse/libpng16&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSSpkg:rpm/suse/libpng16&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-ESPOSpkg:rpm/suse/libpng16&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-LTSSpkg:rpm/suse/libpng16&distro=SUSE%20Linux%20Enterprise%20Micro%205.2pkg:rpm/suse/libpng16&distro=SUSE%20Linux%20Enterprise%20Micro%205.3pkg:rpm/suse/libpng16&distro=SUSE%20Linux%20Enterprise%20Micro%205.4pkg:rpm/suse/libpng16&distro=SUSE%20Linux%20Enterprise%20Micro%205.5pkg:rpm/suse/libpng16&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6pkg:rpm/suse/libpng16&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7pkg:rpm/suse/libpng16&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSSpkg:rpm/suse/libpng16&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSSpkg:rpm/suse/libpng16&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSSpkg:rpm/suse/libpng16&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/libpng16&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP3pkg:rpm/suse/libpng16&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4pkg:rpm/suse/libpng16&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP5pkg:rpm/suse/libpng16&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/libpng16&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/libpng16&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/libpng16&distro=SUSE%20Linux%20Micro%206.1pkg:rpm/suse/libpng16&distro=SUSE%20Linux%20Micro%206.2pkg:rpm/suse/libpng16&distro=SUSE%20Manager%20Proxy%20LTS%204.3pkg:rpm/suse/libpng16&distro=SUSE%20Manager%20Server%20LTS%204.3
< 1:17.0.18.0.8-1.el8+ 126 more
- (no CPE)range: < 1:17.0.18.0.8-1.el8
- (no CPE)range: < 1:17.0.18.0.8-1.el8
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- (no CPE)range: < 1:1.8.0.482.b08-1.el8
- (no CPE)range: < 1:1.8.0.482.b08-1.el8
- (no CPE)range: < 1:1.8.0.482.b08-1.el8
- (no CPE)range: < 1:1.8.0.482.b08-1.el8
- (no CPE)range: < 1:1.8.0.482.b08-1.el8
- (no CPE)range: < 1:1.8.0.482.b08-1.el8
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- (no CPE)range: < 1:1.8.0.482.b08-1.el8
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- (no CPE)range: < 1:1.8.0.482.b08-1.el8
- (no CPE)range: < 1:1.8.0.482.b08-1.el9.alma.1
- (no CPE)range: < 1:1.8.0.482.b08-1.el8
- (no CPE)range: < 1:1.8.0.482.b08-1.el8
- (no CPE)range: < 1:1.8.0.482.b08-1.el9.alma.1
- (no CPE)range: < 1:1.8.0.482.b08-1.el8
- (no CPE)range: < 1:1.8.0.482.b08-1.el9.alma.1
- (no CPE)range: < 1:1.8.0.482.b08-1.el9.alma.1
- (no CPE)range: < 1:21.0.10.0.7-1.el10.alma.1
- (no CPE)range: < 1:21.0.10.0.7-1.el10.alma.1
- (no CPE)range: < 1:21.0.10.0.7-1.el10.alma.1
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- (no CPE)range: < 1:21.0.10.0.7-1.el10.alma.1
- (no CPE)range: < 1:21.0.10.0.7-1.el10.alma.1
- (no CPE)range: < 1:21.0.10.0.7-1.el10.alma.1
- (no CPE)range: < 1:21.0.10.0.7-1.el10.alma.1
- (no CPE)range: < 1:21.0.10.0.7-1.el10.alma.1
- (no CPE)range: < 1:21.0.10.0.7-1.el10.alma.1
- (no CPE)range: < 1:21.0.10.0.7-1.el10.alma.1
- (no CPE)range: < 1:21.0.10.0.7-1.el10.alma.1
- (no CPE)range: < 1:21.0.10.0.7-1.el10.alma.1
- (no CPE)range: < 1:25.0.2.0.10-1.el10
- (no CPE)range: < 1:25.0.2.0.10-1.el10
- (no CPE)range: < 1:25.0.2.0.10-1.el10
- (no CPE)range: < 1:25.0.2.0.10-1.el10
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- (no CPE)range: < 1:25.0.2.0.10-1.el10
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- (no CPE)range: < 1:25.0.2.0.10-1.el10
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- (no CPE)range: < 1:25.0.2.0.10-1.el10
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- (no CPE)range: < 1:25.0.2.0.10-1.el10
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- (no CPE)range: < 1:25.0.2.0.10-1.el10
- (no CPE)range: < 2:1.6.40-8.el10_1.1
- (no CPE)range: < 2:1.6.40-8.el10_1.1
- (no CPE)range: < 1.6.34-1.el8_10
- (no CPE)range: < 1.6.34-1.el8_10
- (no CPE)range: < 1.6.34-1.el8_10
- (no CPE)range: < 1.6.34-1.el8_10
- (no CPE)range: < 1.6.40-150600.3.3.1
- (no CPE)range: < 1.6.44-160000.3.1
- (no CPE)range: < 1.6.51-1.1
- (no CPE)range: < 1.6.34-150000.3.12.1
- (no CPE)range: < 1.6.34-150000.3.12.1
- (no CPE)range: < 1.6.34-150000.3.12.1
- (no CPE)range: < 1.6.34-150000.3.12.1
- (no CPE)range: < 1.6.34-150000.3.12.1
- (no CPE)range: < 1.6.34-150000.3.12.1
- (no CPE)range: < 1.6.34-150000.3.12.1
- (no CPE)range: < 1.6.34-150000.3.12.1
- (no CPE)range: < 1.6.34-150000.3.12.1
- (no CPE)range: < 1.6.34-150000.3.12.1
- (no CPE)range: < 1.6.40-150600.3.3.1
- (no CPE)range: < 1.6.40-150600.3.3.1
- (no CPE)range: < 1.6.34-150000.3.12.1
- (no CPE)range: < 1.6.34-150000.3.12.1
- (no CPE)range: < 1.6.34-150000.3.12.1
- (no CPE)range: < 1.6.44-160000.3.1
- (no CPE)range: < 1.6.34-150000.3.12.1
- (no CPE)range: < 1.6.34-150000.3.12.1
- (no CPE)range: < 1.6.34-150000.3.12.1
- (no CPE)range: < 1.6.44-160000.3.1
- (no CPE)range: < 1.6.8-15.9.1
- (no CPE)range: < 1.6.43-2.1
- (no CPE)range: < 1.6.43-slfo.1.1_2.1
- (no CPE)range: < 1.6.44-160000.3.1
- (no CPE)range: < 1.6.34-150000.3.12.1
- (no CPE)range: < 1.6.34-150000.3.12.1
Patches
Vulnerability mechanics
References
4- github.com/pnggroup/libpng/commit/08da33b4c88cfcd36e5a706558a8d7e0e4773643mitrex_refsource_MISC
- github.com/pnggroup/libpng/issues/686mitrex_refsource_MISC
- github.com/pnggroup/libpng/pull/751mitrex_refsource_MISC
- github.com/pnggroup/libpng/security/advisories/GHSA-hfc7-ph9c-wcwwmitrex_refsource_CONFIRM
News mentions
1- GitLab Patch Release: 18.7.1, 18.6.3, 18.5.5GitLab Security Releases · Jan 7, 2026